// *****************************************************************************
// < コンパイラ MPLAB X XC8 > 怪答PIC 2015/07/07
// 12F675
// A/D変換してLED点灯(^^;
// *****************************************************************************
#include <pic.h>
#define _XTAL_FREQ 4000000 // 内部クロック4MHｚに設定
// __CONFIG(UNPROTECT & BORDIS & MCLRDIS & PWRTDIS & WDTDIS & INTIO);
// CONFIG
#pragma config FOSC = INTRCIO // Oscillator Selection bits (INTOSC oscillator: I/O function on GP4/OSC2/CLKOUT pin, I/O function on GP5/OSC1/CLKIN)
#pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT disabled)
#pragma config PWRTE = ON // Power-Up Timer Enable bit (PWRT enabled)
#pragma config MCLRE = OFF // GP3/MCLR pin function select (GP3/MCLR pin function is digital I/O, MCLR internally tied to VDD)
#pragma config BOREN = ON // Brown-out Detect Enable bit (BOD enabled)
#pragma config CP = OFF // Code Protection bit (Program Memory code protection is disabled)
#pragma config CPD = OFF // Data Code Protection bit (Data memory code protection is disabled)
main()
{
TRISIO = 0b00010000; //GP4 A/D入力
GPIO = 0b00000000; //初期化
ADCON0 = 0b00001101; //左詰め Verf=Vdd 基準電圧はVcc 分解能 5mV 5V/1024
ANSEL = 0b00011000; //Fosc8,AN3=analog
CMCON = 0b00000111; //
while(1)
{
__delay_us(20); // 充電時間
GO_DONE = 1; // AD変換開始
while(GO_DONE); // 変換終了待
GPIO = (ADRESH>>5); // LED出力
}
}
12F675_008.c
トップ